Process Integrating Plastic and Aluminum Could Displace Magnesium
Canadian Plastics
A Japanese company, Taiseiplas, has commercialized a molding technology that integrates aluminum and plastic. Called nano-molding technology, the process can be used to make aluminum-plastic inserts and parts. In the process, an aluminum alloy is...
A Japanese company, Taiseiplas, has commercialized a molding technology that integrates aluminum and plastic. Called nano-molding technology, the process can be used to make aluminum-plastic inserts and parts. In the process, an aluminum alloy is first degreased and then immersed in a so-called “T-solution”. Taiseiplas calls this pre-treatment the key step for ensuring a good bond between metal and plastic. The T-process creates microscopic dimples, indentations with a diameter of 20 to 30 nm.
The aluminum is then inserted into the mold and PPS or PBT resin is injection molded on to the metal. The microscopic dimples create a large surface, resulting in an extremely strong bond between metal and plastic, according to the company. The end result is a part that is light weight, but stronger than pure plastic. The company foresees the process possibly displacing magnesium in electronic and automotive applications, as aluminum is less reactive and safer. Taiseiplas opened a pilot plant in Japan last year to speed commercialization of the process.
